Representing Decimals

Lesson Summary

-In this lesson you will learn three different ways to write decimals. They're called standard form, word form, and extended form.

Standard Form

-Standard form is just the regular way to write something. For example, 4.5 would be the standard form of the number. Pretty basic really.

Word Form

Writing decimals in word form is making the number, letters. For an example, 4.5 in word form would be four and five tenths. Remember, change the word point to the word and. Here's a cool link to help you.

Expanded Form

Writing decimals in extended form is definitely the hardest of the three. Extended form is a sum of the products of each digit and its place value. For example, 4.5 in extended form would be (1x4)+(1x0.5)=4.5. Here's a link to help you. http://www.coolmath.com/decimals/03-decimals-expanded-notation.html

Here's a picture of someone doing it.